移动通信电波传播场强的数据采集与分析

Analysis and Measurement on Field Strength of Land Mobile Radio Signal

在当前深入研究移动通信电波传播场强数据采集标准方法的情况下,本文根据移动通信电波传播的理论,通过数理统计分析,详细论述了数据采集中应采用的样本区间长度、样本间隔和重复测量次数,可供实际应用参考。并根据北京市实测数据分别对信号幅度的快衰落概率分布规律和常用传播模式进行了检验,提出了推荐传播模式,有利于降低场强预测中的误差。

Based on the propagation theory of land mobile Communications and statistical processing, this paper gives detailed analysis about some important problems of field strength measurement, such as the length of measurement section, the departure distance of samples and the repeat times of measurement, etc. A experimental propagation model is proposed which is based on the tests of propagation model and amplitude, probability distribution of fast fading. The conclusions of this paper co.uld be used to improve the accuracy of field strength prediction of land mobile radio system design.